Focal length of a concave lens is 25 cm - Calculate its power-A- -4 DB- 4 DC- -10 DD- 25 DE- -0-25 D

The correct option is A 4 D ...

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Standard X

Physics

Myopia

Focal length ...

Question

Focal length of a concave lens is 25 cm. Calculate its power.

25 D

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-0.25 D

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-4 D

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-10 D

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4 D

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Solution

The correct option is C
-4 D

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Focal length of a concave lens is 25 cm. Calculate its power.

The correct option is C -4 D

The correct option is C
-4 D